Bul. 1, new series, Div. of Entomology, U. S. Dept. of Agriculture. PLATE lI. 
DIGESTIVE SYSTEM OF BEE (magnified ten times). 
A. Horizontal section of body; lp, labial palpus; mz, maxilla; e, eye; dv, dv, dorsal 
vessel; vu, ventricles of the same; No. 1, No. 2, No. 3, salivary gland systems, 1, 2, 3; 
ce, oesophagus; pro.t, prothorax; nesa.t, mesathorax: meta.t, metathorax; g, ag, 
ganglia of chief nerve chain; n, nerves; hs, honey sac; p, petaloid stopper of honey 
sac or stomach mouth; c.s, chyle stomach: bt, biliary or Malpighian vessels: si, 
small intestine; J, lamelle or gland plates of colon; li, large intestine. 
